This past racing season, my good friend BeerDidClam introduced my crew to the benefits of rig fraculation, i.e., pulling the rig forward on the downwind leg. But I have two questions about fraculation:   1) Do the benefits of fraculation begin to diminish as one heats up the boat by sailing higher angles? If so, approximately at what AWA does it no longer make sense to fraculate the rig? 2) In a corollary question to (1), is there an apparent wind strength in which fraculation doesn't make